Parvovirus is generally spread through contact. If a healthy dog ​​comes into contact with an infected dog or its excrement, it will be infected with parvovirus. Parvovirus is very contagious and difficult to cure, so it is best to It is best to do preventive work. Dogs should be vaccinated on time. Dogs that have not been vaccinated should not be taken out. The environment should be disinfected regularly. It is best for owners to wash their hands before coming into contact with dogs after going out and returning home.